relocation of fetch*, push* and pop*

cpu.c

@@ -8,51 +8,6 @@ u16int	pc;
 
 int	irq, nmi;
 
-void
-push8(u8int v)
-{
-	memwrite(0x100 | rS--, v);
-}
-
-void
-push16(u16int v)
-{
-	memwrite(0x100 | rS--, v >> 8);
-	memwrite(0x100 | rS--, v);
-}
-
-u8int
-pop8(void)
-{
-	return memread(0x100 | ++rS);
-}
-
-u16int
-pop16(void)
-{
-	u16int v;
-	
-	v = memread(0x100 | ++rS);
-	v |= memread(0x100 | ++rS) << 8;
-	return v;
-}
-
-u8int
-fetch8(void)
-{
-	return memread(pc++);
-}
-
-u16int
-fetch16(void)
-{
-	u16int r;
-	
-	r = memread(pc++);
-	r |= memread(pc++) << 8;
-	return r;
-}
-
 void
 nz(u8int v)
 {

mem.c

@@ -18,3 +18,49 @@ memwrite(u16int a, u8int v)
 	if((void*)a < romptr)
 		mem[a] = v;
 }
+
+
+void
+push8(u8int v)
+{
+	memwrite(0x100 | rS--, v);
+}
+
+void
+push16(u16int v)
+{
+	memwrite(0x100 | rS--, v >> 8);
+	memwrite(0x100 | rS--, v);
+}
+
+u8int
+pop8(void)
+{
+	return memread(0x100 | ++rS);
+}
+
+u16int
+pop16(void)
+{
+	u16int v;
+	
+	v = memread(0x100 | ++rS);
+	v |= memread(0x100 | ++rS) << 8;
+	return v;
+}
+
+u8int
+fetch8(void)
+{
+	return memread(pc++);
+}
+
+u16int
+fetch16(void)
+{
+	u16int r;
+	
+	r = memread(pc++);
+	r |= memread(pc++) << 8;
+	return r;
+}